Safe for health and the environment
In Cruseilles, France, in the Haute-Savoie region, Colas Environnement has completed the clean-up of a former oil depot. The soil, polluted with hydrocarbons after 56 years of operation, was completely treated by the teams, using processes including the biotertre technique, which consists of biologically treating soil collected in piles by adding drains and compost. After several months, 5,500 tons of soil could be reused as backfill. The rest of the soil was sent to an approved treatment facility. Now safe for the environment and for people’s health, the once contaminated site has become the ideal backdrop for a future residential area!